EventSystem.IsPointerOverGameObject

Parameters

Description

具有给定 ID 的指针是否位于 EventSystem 对象上？

using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;

public class MouseExample : MonoBehaviour
{
    void Update()
    {
        // Check if the left mouse button was clicked
        if (Input.GetMouseButtonDown(0))
        {
            // Check if the mouse was clicked over a UI element
            if (EventSystem.current.IsPointerOverGameObject())
            {
                Debug.Log("Clicked on the UI");
            }
        }
    }
}

如果使用没有参数的 IsPointerOverGameObject()，它将指向“鼠标左键”(pointerId = -1)；因此，当您使用 IsPointerOverGameObject 进行触摸时，应该考虑将 pointerId 传递给该对象。

using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;

public class TouchExample : MonoBehaviour
{
    void Update()
    {
        // Check if there is a touch
        if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began)
        {
            // Check if finger is over a UI element
            if (EventSystem.current.IsPointerOverGameObject(Input.GetTouch(0).fingerId))
            {
                Debug.Log("Touched the UI");
            }
        }
    }
}

请注意，对于触摸操作，应将 IsPointerOverGameObject 与“OnMouseDown()”、“Input.GetMouseButtonDown(0)”或“Input.GetTouch(0).phase == TouchPhase.Began”结合使用。